ERROR CODES

17055 - P0671 - 429F - Cylinder 1 Glow plug circuit (Q10). Electrical failure in the power circuit.

17056 - P0672 - 42A0 - Cylinder 2 glow plug (Q11). Electrical failure in the power circuit.

17057 - P0673 - 42A1 - Cylinder 3 glow plug (Q12). Electrical failure in the power circuit.

17058 - P0674 - 42A2 - Cylinder 4 glow plug (Q13). Electrical failure in the power circuit.

SYMPTOM

Fault codes recorded in the engine control unit.
The vehicle displays one or several previous fault codes.
Engine warning light (MIL) on.

NOTE: This technical note affects only those vehicles that are within a specific manufacturing date.

CAUSE

Possible causes:
• Defect in the glow plugs.
• Defect in the engine control unit software.

SOLUTION

Repair procedure:
• Read the fault codes recorded in the engine control unit (ECU) using the diagnostic tool.
• Confirm that one or several of the fault codes that appear in the field symptoms of this bulletin are displayed.
• Check the condition de the glow plugs.
• Replace all the glow plugs if any of them is in poor condition.
• Clear the fault codes recorded in the engine control unit (ECU) using the diagnostic tool.
• Reprogramme the engine control unit (ECU) with updated software from the manufacturer.